Oracle

1. In oracle in English, the default date format is 'dd-MON-YY ', For example, '01-Jan-98' In the Chinese version of the Chinese version, the default Oracle date format is 'day-month-Year', for example, '21-January-2003-'or '21-January-03'

Common connection strings of Oracle oledb are as follows: "Provider = oraoledb. Oracle; Data Source = myoracledb; user id = username; Password = asdasd ;" Here, the user ID can be written to system and can be successfully logged on. However, if it

Recently, Oracle was used in a project. Due to the large database, each backup and recovery time was relatively long. In the past few days, I have successfully cloned the database by referring to a large amount of data, i'm delighted to share this

Oracle Database recovery Aul, also known as mydul, and Oracle DUl, can directly read data from Oracle data files from Oracle software. if you cannot start your Oracle Data normally and there is no valid backup available for recovery, for example,

Title: rownum cannot be greater than> in Oracle Switch from the network and make slight changes: 1. Description of rownum For the rownum problem of Oracle, many documents say that ">,> =, =, between..." in SQL statements are not supported...

We all know the usage of case when. Once a certain when is satisfied, the data will exit the case when instead of considering other cases,ArticleTo introduce the usage of case when in detail and give an example. Case when usage-simple case function

Using Auto-increment fields in Oracle As we all know, Oracle does not support the auto_increment field, but you can create a sequence object to use the auto-incrementing sequence. The syntax is: SQL Code Create sequence seq_subs_id

From: http://hi.baidu.com/freeperson/blog/item/2f9eafd48a693909a08bb70f.html   Here we provide optimization of the execution performance, rather than the background database optimizer: According to various issues in database development

It is best to install Oracle 9i on a P4 computer If it is not convenient, you can install Oracle 8i in the following ways (in fact, not all p4cpu can not install oracle8 I my P4 1. 7. There is no problem when installing Oracle 8.1.6) Install Oracle 8

Oracle. dataaccess. dll has versions 2. x and 4. x, and 2.x is used for vs2008 development. The required DLL can be copied from the installed Client   Because Microsoft is. in net framework4, system. data. oracleclient. DLL deprecated, and in

I. Overview Oracleebs is an Oracle ERP product. This product is very large and can provide powerful management functions for all aspects of the enterprise. Generally, some of its modules are used by large enterprises, depending on the nature of

// Remove the last two characters of the field Select substr (T. modality, 1, length (T. modality)-2), T. PSI from order_list t where T. PL = 'lss' or T. PL = 'pc' // Add a suffix after a field Update product_type t set T. code = Concat (T.

NOTE: Refer to database version: 10.0.2 I. Command Parsing Startup options | upgrade_options Options[Force] [restrict] [pfile = filename] [Quiet] [Mount [dbname] | [open [open_options] [dbname] | nomount], the three stages of nomount, mount,

Recently, I am working on an Oracle database project. Now I want to talk about some successive Oracle Database problems. 1. Download. Net managed provider for Oracle from Microsoft msdn on the download page of

When using ODP.. Net for Oracle programming, sometimes the SQL statements are very complex and need to be dynamically constructed query statements. There are two ways to construct dynamic SQL statements and execute the returned result set. 1.

Subject: how to clean up after a failed Oracle clusterware (CRS) Installation Doc ID: 239998.1 type: Bulletin Modified Date: 18-Mar-2009 status: published Purpose------- The purpose of this document is to help DBA's and support analysts

A materialized view is a database object that contains a query result. It is a local copy of remote data or is used to generate a summary table based on the sum of data tables. Materialized View stores data based on remote tables, also known as

I have introducedWin7UpperOracle 10gNext we will introduce you to the method for uninstalling. Many do not dare to installOracleI am worried that the uninstallation will not be clean after installation. In fact, I had this concern at the beginning.

/* -------------------- Create an oracle linked server --------------------*/ Exec Sp_addmediaserver @ Server = 'Orcl' , -- Orcl is the link server name in SQL @ srvproduct = 'Oracle' , -- Oracle fixed @ provider = 'Msdaora' , -- Msdaora fixed @

Oracle Data Import and Export imp/exp function: Oracle Data Import and Export imp/exp is equivalent to oracle data restoration and backup. In most cases, you can use Oracle data import and export to back up and restore data (without causing data